# All files / src/stories Button.jsx

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     import React from 'react';
    import PropTypes from 'prop-types';
    import './button.css';

    /**
     * Primary UI component for user interaction
     */
    export const Button = ({ primary, backgroundColor, size, label, ...props }) => {
      const mode = primary ? 'storybook-button--primary' : 'storybook-button--secondary';
      return (
        <button
          type="button"
          className={['storybook-button', `storybook-button--${size}`, mode].join(' ')}
          style={backgroundColor && { backgroundColor }}
          {...props}
        >
          {label}
        </button>
      );
    };

    Button.propTypes = {
      /**
       * Is this the principal call to action on the page?
       */
      primary: PropTypes.bool,
      /**
       * What background color to use
       */
      backgroundColor: PropTypes.string,
      /**
       * How large should the button be?
       */
      size: PropTypes.oneOf(['small', 'medium', 'large']),
      /**
       * Button contents
       */
      label: PropTypes.string.isRequired,
      /**
       * Optional click handler
       */
      onClick: PropTypes.func,
    };

    Button.defaultProps = {
      backgroundColor: null,
      primary: false,
      size: 'medium',
      onClick: undefined,
    };